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EnKF ionosphere and thermosphere data assimilation algorithm through a...
In this work, we constructed an ensemble Kalman filter (EnKF) ionosphere and thermosphere data assimilation system using the National Center for Atmospheric Research...- publication PDF
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A comprehensive assessment of tropical stratospheric upwelling in the...
Specified dynamics (SD) schemes relax the circulation in climate models toward a reference meteorology to simulate historical variability. These simulations are widely used to...- publication PDF
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Improving large-domain convection-allowing forecasts with high-resolution...
Analyses with 20-km horizontal grid spacing were produced from continuously cycling three-dimensional variational (3DVAR), ensemble square root Kalman filter (EnSRF), and...- publication PDF
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The Atmospheric Boundary Layer and the “gray zone” of turbulence: A critical review
Recent increases in computing power mean that atmospheric models for numerical weather prediction are now able to operate at grid spacings of the order of a few hundred meters,...- publication PDF
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Characterizing mega-city pollution with TES O₃ and CO measurement
Concurrent tropospheric O₃ and CO vertical profiles from the Tropospheric Emission Spectrometer (TES) during the MILAGRO/INTEX-B aircraft campaigns over the Mexico City...- publication PDF
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Observed and bin model simulated evolution of drop size distributions in...
This study examines microphysical processes in developing high-based cumulus congestus over the United Arab Emirates using aircraft observations and a large-eddy-simulation...- publication PDF
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On the importance of representing snow over sea-ice for simulating the...
Correctly representing the snow on sea-ice has great potential to improve cryosphere-atmosphere coupling in forecasting and monitoring (e.g., reanalysis) applications, via...- publication PDF
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On the momentum budget of the quasi-biennial oscillation in the Whole...
This study documents the contribution of equatorial waves and mesoscale gravity waves to the momentum budget of the quasi-biennial oscillation (QBO) in a 110-level version of...- publication PDF
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Ionospheric electron content during solar cycle 23
The solar minimum period between solar cycles 23 and 24 has generated extensive study, in part because the changes in the upper atmosphere and ionosphere were so dramatic....- publication PDF
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The quasi 2-day wave activities during 2007 austral summer period as...
The quasi 2 day wave (QTDW) observed during 2007 austral summer period is well reproduced in an reanalysis produced by the data assimilation version of the Whole Atmosphere...- publication PDF
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Regional extreme monthly precipitation simulated by NARCCAP RCMs
This paper analyzes the ability of the North American Regional Climate Change Assessment Program (NARCCAP) ensemble of regional climate models to simulate extreme monthly...- publication PDF
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Forecasting net ecosystem CO₂ exchange in a subalpine forest using model...
Forecasting the carbon uptake potential of terrestrial ecosystems in the face of future climate change has proven challenging. Process models, which have been increasingly used...- publication PDF
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Significant enhancements of nitrogen oxides, black carbon, and ozone in the...
Extensive wildfires burned in northern North America during summer 2004, releasing large amounts of trace gases and aerosols into the atmosphere. Emissions from these wildfires...- publication PDF
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Comparison of ensemble Kalman filters under non-Gaussianity
Recently various versions of ensemble Kalman filters (EnKFs) have been proposed and studied. This work concerns, in a mathematically rigorous manner, the relative performance of...- publication PDF
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Modes of (FACs) variability and their hemispheric asymmetry revealed by...
We determine the primary modes of field-aligned current (FAC) variability and their hemispheric asymmetry by nonlinear regression analysis of a multiyear global data set of...- publication PDF
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Occurrence of lower cloud albedo in ship tracks
The concept of geoengineering by marine cloud brightening is based on seeding marine stratocumulus clouds with sub-micrometer sea-salt particles to enhance the cloud droplet...- publication PDF
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Generalized background error covariance matrix model (GEN_BE v2.0)
The specification of state background error statistics is a key component of data assimilation since it affects the impact observations will have on the analysis. In the...- publication PDF
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Observations of near-surface carbon monoxide from space using MOPITT...
Using both thermal infrared (TIR) and near infrared (NIR) channels of MOPITT (Measurements of Pollution in the Troposphere) on EOS-Terra, we demonstrate the first coincident...- publication PDF
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Why and how to write a high-impact review paper: Lessons from eight years of...
High-impact review papers describe and synthesize the current state of the art, the open questions and controversies, and provide ideas for future investigations. They are...- publication PDF
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Evaluation of high-resolution satellite precipitation products over very...
This study focuses on the evaluation of 3-hourly, 0.25° × .25°, satellite-based precipitation products: the Tropical Rainfall Measuring Mission (TRMM) Multisatellite...- publication PDF
